Optics: measuring and testing – Photometers – Photoelectric
Patent
1997-03-04
1999-03-30
Font, Frank G.
Optics: measuring and testing
Photometers
Photoelectric
356225, G01J 142
Patent
active
058895868
ABSTRACT:
A photodetection system that analyzes a luminous flux (15) received on a line (10). The photodetection system includes an opaque mask (4) provided with at least one aperture (6), placed in the vicinity of the line, driver (7) designed to rotate the mask, detector (8, 9) of an angular position of reference of the mask, a field lens (12) concentrating the luminous flux (16) crossing the line onto a photodetector (1), and a processing unit (3) connected to the photodetector, for analyzing the luminous flux to yield values for several points on the line.
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Chauvin Philippe
Thevenon Alain
Font Frank G.
Instruments S.A.
Stafira Michael P.
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